High pressure oiler



June'ZI, 1932. M'QRRQW 1,863,911

HIGH PRES SURE OILER Filed Oct. 21, 1929 2 Sheets-Sheet l f n rlllllllllll I fiver-7712p:

Em me 25' fl/Worrmu.

June 21, 1932.

E. H. MORROWJ HIGH'PRESSURE OILER Filed Oct. 21, 1929 Q Err:

ZSheets-Sheet 2 rngt Morrow.

Patented June 21, 1932 UNITED STATES PATENT oar-10E mm n. uonnow, or cnrcaeo, rumors, assrenon or one-m: in 10m; 0. Ionnow. or cxncaeo, rumors are! rnnssonn om Application filed October 81, 1939. Serial Io. 401,891.

vide an oil-can wherein oil may be e'ected under pressure irrespective of the position of the oil can.

A still further object of the'invention is tov provide an oil can having a spout which is formed with a cylindrical portion and with a tapered portion there being a piston in the cylindrical portion for entrappmg a charge of oil on one stroke of the plunger and ejecting said charge on the next-stroke of the longer. I

A still further object of the invention is to provide a high pressure oil can which is economical to manufacture and efiicient and positive in use.

The above, other and further objects of the invention will be apparent from the following description, accompanying drawings, and appended claims.

According to the invention an oil can spout is formed with a cylindrical portion and a tapering portion with a piston in the cyl1n drical portion which piston is movable by means of a plunger having an end which projects through the oil can. 'Suitable valves are arranged so that the piston will on one movement of the plunger entrap a charge of oil in the cylinder and on the subsequent movement discharge said charge under pressure and receive a second 'eharge.

Embodiments of the invention are illustrated in the accompanying drawings and the views thereof are as follows:

Figure 1 is a vertical central section through-an oil'can and a s ut with a part of the spout shown in elevation containing one embodiment of the invention.

Figure 2 is a fragmental side elevational view of the arrangement of Figure 1 showing the plunger at the inner 'end of its stroke and the relation of the piston to the discharge endpf the cylindrical portion of the spout.

Figure 3 1s an enlarged elevational view of a spring arranged within the cylindrical portion of the spout. a

Figure 4' is an enlarged sectiontaken on line I-V-IV of Figure 1.

Figure 5 is a fragmental'elevational view partially '11 section of an oil can showing a modified form of piston.

Figure 6 is a view similar to Figure 5 showingrstill another form of piston.

i re 7 is a, 580M011 taken on line VII-VII of Figure 5.

Figure 8 is an enlarged section taken on linIe V IIIVIII of Figure 5.

1 line XIX of Figure 6. v

Fi re 10 is an enlarged section taken on line X of Figure 6. i

An oil can 1 is rovided with an open end 2 which is three ed and a bottom 3 which bottom is secured to the can 1 by having the lower margin of the can body crim ed over as at 4 the lower margin of the mem r forming the recessed bottom 3.

A hollow sleeve 5 is fastened in a centrally disposed recess 6 in the bottom 3 by having its flanged end 7 soldered or welded to the bottom 3. The upper end of the sleeve 5 terminates below the open end 2of the can and is 'provided'with a gasket 8 about the.

upper end of the sleeve 5.

plunger 9 is slidably arranged in the sleeve 5 and has its outer end extending outwardly of the depressed bottom 3 of the can where it is provided with a head 10 which serves to move the plunger whenever oil is to be dischar ed from the can. A sprin 11 is interposed tween the outer surface 0 the depressed bottom 3' and plunger so as to maintain the plunger normally in outward position, that is in the ition shown in Figures 1, 5, and 6 o the drawings.

The upper end of the plunger 9 is reduced in diameter and threaded at 12. A plunger valve 13 having a threaded interior 18 re 9 is an enlarged section taken on A the head 10 of the sition.

threaded onto the reduced end 12 of the plunger. The valve shown in Figures 1 and 2 has an enlarged head 14.

The spout comprises a cap 15 having threads for engaging the threaded end 2 of the can 1. Above-the cap 15 the spout is formed fora portion of its length as a cylinder 16 and then the spout tapers forming a tapered portion 17 to the end. The cylindrical portionl6 and the tapered portion 17 are integral being formed from the same material. The walls of the spout connecting the cylindrical portion 16 and the tapered portion 17 form an inner annular shoulder 18.

A gasket 19 is arranged within the cap 15 for making a leak tight joint with the open end 2 of the'can.

The upper end of the sleeve 5 terminates a short distance below the open end 2 of the can so that when the parts are in normal position the head 14 of the lunger valve 13 1s disposed near the end 2 o the can.

A cage member 20 comprising a circular cage formed from sheet metal and having a flared skirt 21 is provided with a transverse member 22 having a central aperture 23 therein which aperture'serves as a valve seat. The member 22 is pressed into the cage 20 so as to be held firmly in the same. A ball valve 24 is interposed in the cage between the upper end thereof and the transverse member 22 and is held in engagement with the valve seat 23 by means of a spring 25. The side portions of the cage 20 are apertured at 26 to afiord means for discharging oil through the cage 20. The upper end of the cage member 20 is imperforate. i A iston is. arran ed within the cylindrica portion 16 of t 1e spout. The piston illustrated in Figures 1 and 2 comprises a counter bored member 27 having a central aperture 28 in its lower end and with the walls of the lower end outwardly of said aperture countersunk at 29 to receive the head 14 of the plunger valve 13. The shape of the head 14 and the countersunk end 29 of the piston is such as to afiord a leak tight seal between these parts when in normal po- A spring 30 is arranged between the transverse member 22 of the cage 20 and. the low or end of the counter bored portion of the piston 27 for maintaining the piston nor- 13. The spring 30 is formed with its ends 31 and 32 of larger diameter than the' balance of the spring so as. to allow passage of oil thereby when the piston 27 is operated in a manner to be hereinafter more fully explained. Y

Figure 1 shows the parts when in normal position and Figure 2 shows the parts when the plunger 9 is pressed to the outermost po- The can 1 is supplied with oil by removing the cap 15 there romand filling the can whereupon the cap 15 is replaced. The piston 27 normally seats agalnst the head 14' of the plunger valve 13 so as to sealpassage into the piston." The ball valve 24 normally closes the upper end. of the cylindrical portion of the spout; The head 10 of the plunger 9 is then ressed inwardly to the position shown in Figure 2 and is then released. The spring 11 returns the plunger to normal position, that is the position shown in Figure 1 and the spring'30 tends to returnthe piston 27 to its normal position. Movement of the piston to the upper end of..the cylindrical portion 16 of the stem creates a partial vacuum within the cylinder which tends to retard the movement of the piston 27 to normal position thereby separating the piston from its engagement with the head 14 of the plunger valve 13 and allowing oil toenter the cylindrical portion 16' of the spout. The oil will not pass the ball valve 24 at this time as the spring 25 immediately seats the ball when pressure on the plunger is released. By the time the piston 27 has reached its normal position such as that shown in' Figure 1 a charge of oil will be entra ped within the cylindrical portion 16 of t e spout and a subsequent movement of the plunger 9 will compress this charge of oil and force it outwardly past the ball valve 24 discharging the same laterally of the cage 20 through thespout for aiding in ejecting the oil under.

pressure from the spout to a fitting. The end 34 may be of rubber composition so as to effectively seal the connection between the end of the spout and its fitting thus aiding in discharging of the oil under pressure.

' Provision of the ball'valve 24 serves also as a means to prevent leakage and dripping from the end of the spout should the can be inadvertently overturned or held in upside down position. 7

Figure 2 shows that the spring 36 is not compressed to such an extent as to completely clog or close oil passage through the counter bored portion of the piston 27. Furthermore,

the provision of the oil discharge aperture 26 in the side of the cage me r 20' eliminates clogging of passages by the compression vided with a button head 36 of the ball valve spring which clogging is' usual when the 011 discharge opening is 1n alignment with the axis of the s ring.

The. form of the invention illustrated in Figure 5 is the same as that described with referenceto Fi ures 1 to 4 with the exception of a modified orm of piston and of its connection with the plunger. a

'A plunger 35 is arranged within the sleeve 5 and is provided outwardl of the recessed end 3 of the can with a hea 10and a spring 11. The upper end ,of theplun r 35 is proaving a reduced neck 37 immediately under the head The piston illustrated in comprises a member having "a' counter such as brass or the like.

in this member at the junction of. the two of the plunger 35 will move the larger end 37 and a smaller counter bored lower portion 38, the portions 37 and 38 being formed from a single iece of material he counter bore in the portion 38 is of smaller diameter than is the counter bore in the portion 37 and likewise the outer-diameters of these two portions are difierent with the diameter'of the portion 38 smaller; Aseat 39 is formed withcounter bores within the same, and a ball valve 40 is normally held in this seatby means of a spring 41 whichis retained against the ball 40 by means of a collar 42' pressed into theupper end of the-counter bore of the portion 37. Lateral openings 43 are provided in the lower portion 38 of the piston member for inlet of oil to the interior of the piston.

The lower end of the piston member is counter bored at 44 with a slot 45 cut in one side of the same. The counter bore 44 receives the button head 36 of the plunger 35. The outer surface of the lower end'of the piston opposite to the slot 45 is provided with a recess 46. A cotter pin '47 having one straight le 48 and with the other leg 49 formed wit an intermediate arcuate portion 50 is inserted with the straight leg 48 passing through the slot 45 in the piston for engaging under the button head 36 of the plunger 35 and with the arcuate portion 50 lying in the recess 46 on the outer surface of the piston for connecting the piston to the plunger 35;

The operation of the form of the invention illustrated in Figure 5 is as follows The parts are innormal' position as in Figure 5. Pressure against the head 10 lun'gef" in-- wardly which moves the piston ,t rough the c lindrical portion 16 of the spout-I Release oi pressure against the head 10 will 'allow the plunger to be returned to normal position and the vacuum created. in the cylindrical portion 16 willtendto retard the movement of the piston'to normal position thus enabling oil a. to be admitted-Ito the cylindrical'portionj 16 through the'lateral openings which passes shown the ball valve 40 as the spring 41 is a weak sprin for thispurpose. n this. manner the c lin rical rtion 16- is provided with a c arge of oi, {ready to be ejected on the next inward movement of the plunger The ball valve 24 inthe cage 20 and the ball valve 40 in the (piston entrap the oil charge within the cylin rical portion of the spout ready to be discharged under pressure by the plunger. Inward movement of the plunger 35 will e act the charge within the cylindrical portion\ 16 through the spout and on release will admit another char of oil to the ,cylindricalportion 16 provi ed the can is held with the spout downwardly so that the oil may flow through the inlets 43 in the piston. 7

An oil seal 33 similar to that described with reference to Figure 1 is shown as applied to the end of the spout of the can illustrated in Figure 5.

Figure 6 illustrates another modification of piston'from that shown in Figures 1 and 5.

The plunger 51 of Figu 10 outwardly of the bottom of the can 3 while its inner end is reduced in diameter forming an extension 52'the upper end of which extensionis threaded at 53. A semi- 1 spher'cal valve 52 having a central aperture is mo nted on the extension 52 for seating against thergasket 8 on the upper end of the sleeve 5. 0 piston illustrated in Figure 6 comprises a counter bored member 56 having a central aperture 57 in the lower end thereof and with the part outwardly of said aperjture countersunk at 58 for serving as a valve seat in connection with the valve 54. A sleeve ,59 surrounds the extension 52 .within the piston 56 and is movable axially. A star wheel 60 is threaded onto the threaded end 53 of the extension 52 for allowing passage of oil past the wheel 60 on actuation of the plunger 51. A sprin 61 is interposed between the underside o the lower end of the piston so as to retain the piston in engagement with the valve 54 thus sealing the opening to the piston from the interior of the can.

Operation of the form of the invention illflstrated in Figure 6 is as follows: L Inward movement o'fthe plunger 51 moves the piston upwardly in the cylindrical porthe star wheel 60 and tion 16 of the spout and on release of pressure against the plunger, the plunger is returned to normal position. The vacuum created in the cylinder retards movement of the piston on its return stroke so as to open passage through the piston to admit oil to sure with thespoutpointing upwardly as well as downwardly as delivery of the oil to the cylindrical portion of the spout is ac-' complished before the end of thespout is ap- 5 plied to the fitting into which the oil is to be ejected. I

'The pistons have snug fit within the cylindrical portions 16 for the purpose of preventing the passage of oil by said pistons during the pressure stroke.

20 partial straining and thinning of the oil which occurs when the oil is discharged,

through the spring.

A gasket may be interposed between the valve 54 and the shoulder formed between the extension 52 andthe plunger 51 of the form shown in Figure 6.-

"The lower end of the spring is enlarged having a cylindrical portion and a tapered portion, a cage in said spout at the junction of said portions, said cage containing a valve arranged to open towards the tapered portion, means in said cage for normally maintaining said valve in closed position, said cage havin lateral discharge openings, a piston slidable in said cylindrical portion, said piston having an oil admisson port therein, a

. plunger for moving said piston towards said in diameter to prevent displacement of the piston 27 when the spout is removed from the can body -1.

The invention has been described more or less precisely herein, yet it is to be understood that changes may be made in the arrangement and proportion of parts and that equivalents may be substituted without departing from the spirit and scope of the invention.

The invention is claimed as follows:

1. An oiler including a spout, said spout having a cylindrical portion and a tapered portion, a valved passage in said spout at the junction of said portions, a piston in'said cylindrical portion inwardly of said valved passage, said piston having an oil admission port, a valve normally closing said port, and ma plunger for moving said piston toward said valved passage to eject oil through said passage.

2. An oiler including a spout, said spout having a cylindrical portion and a tapered portion, a valved passage in said spout at the junction of said portions, a piston within said cylindrical portion inwardly of said valved passage and having an oil admission port, a plunger for moving said piston in a direction to discharge oil through said passage, and having a valve thereon for closing said port, a spring for returning said iston to normal position, a stronger spring or returning said plunger to normal position wherebysaid plunger is moved away from said piston as said plunger and piston are returned to normal position thereby opening I said piston port to oil admission. 3. Anzoileiaincluding a spout, said spout cage to discharge oil through the cage, a valve on said plunger for'normally closing the piston port, and a spring for moving said piston in a direction opposite to which it is moved by said plunger.

4. An oiler including a spout, said spout having a cylindrical portion and a tapered portion, a cage in said spout at the junction of said portions, said cage containing a valve and a valve seat, said valve arranged to open towards the tapered portion, means in said cage for normally maintaining said valve against its seat, a piston slidable in said cylindrical portion, said piston having an oil admission port, a plunger for moving said piston towards said cage, said plunger carrying av'alve for normally closing said piston port, a spring for returning said plunger to normal position, and a-spring for moving said piston in the opposite direction, said plunger return spring being stronger than the piston spring whereby said plunger may be returned to normal position ahead of said piston and the valve thereon moved away from said piston port.

5. An oiler comprising a body, a spout.

associated-with said body, said removabl spout inc uding a cylindrical portion and a tapered portion integrally formed, the walls of said spout adjacent said cylindrical portion and said tapered portion defining an inner annular shoulder, acage pressed into said.

spout and against said shoulder, said ca having a valve seat therein, a ball valve wit in said cage and normally closed against said seat, a spring for maintaining said ball in closed position, said cage having laterally disposed oil outlets, a piston snugly fitting said cylindrical portion and movable therein, said piston having an oil admission port, a spring interposed between saidcage and said piston for maintaining the piston norma-llye away from said cage, ,a plunger for moving said piston towards said cage, said plunger carrying a valve for normally closing the piston port, a heavy sprin for returning said plunger to normal pos tion, the parts being arranged insuch that on return to normal position after adischarge stroke. of the plunger, the plunger and valve controlling the oil admission port in said piston are moved faster than the piston whereby said plunger carried valve is moved away from its seat. 6, An oiler including a spout, said spout cylindrical portion past said ball valve, and

spring means for moving said piston port valve away from its seat on the return stroke of said piston.

7. An oiler including a spout, said spout having a cylindrical portion and a tapered portion, a piston movable in said cylindrical said cylindrical portion in garra-nged with its end portions of portion, said piston having an oil admission port therein, a valve movable with respectto said piston for normally closing said port, a

s ring for retaining said valve in closed'po- Sltl0l1,'& plunger for moving said piston in a direction to discharge oil from said tapered portion, a spring for moving said plunger in the opposite direction, said piston fitting such manner as to be frictionally retarded dnring its return movement whereby said plunger is returned to normal position by said spring ahead of said piston thus exposing the piston port to oil admission.

8. An oiler including a spout having a cylindrical portion and a tapered portion, a cage in said spout at the junction of said portions, said cage containing a spring pressed ball valve for normally closing passage into the tapered portion, said cage having lateral discharge ports, a piston slidable within said cylindrical portion and having a snug fit therein, a spring between said cage and said piston for normally maintaining said piston away from said cage, said sprigg ater iameter than the intermediate portion for ala spout, said spout lowing oil passage thereby when said spring is compressed, and a plunger for moving said piston toward said cage through said cage.

9. An oiler including a can and a spout, said spout being disposed on said can against zndwise relative movement with respect thereto, said spout having a.cylindrical portion therein, a piston movable within said cylindrical portion, a plunger operable through the oiler bottom for to discharge oil movlng said piston in discharge direction, a spring for moving the said piston having an oil passage therethrough, a valve oh said plunger for normally closing said passage, and a spring for moving said plunger in a direction opposite to its movement in dischar c direction.

10. A luiiricator including a can body and having a cylindrical por- 'therein, and a plunger,

, through tion, a valved passage at the end of the cylindrical portion nearer the discharge end of the spout, a piston movable portion, said piston having an oil admission port therein, and a plunger having a valve thereon for normally closing said port, said plunger operable to close said port and move said, piston toward said valved passage to eject oil through the same.

11. A lubricator including a can body and aspout, said spout having a cylindrical portion therein, a valved passage at the end of the cylindrical portion nearer the discharge end of the spout, a piston movable within said cylindrical portion inwardly of said passage, said piston having an oil admission port a valve thereon for enga ing the piston port, said plunger being opera le to close saidport and move said piston'toward said valved passage to eject oil through the passage.

12. A lubricator including a can body and a spout, said spout having-a cylindrical portion therein, a valved passage at the end of the cylindrical portion nearer the discharge end of the spout, a piston said cylindrical portion, said piston having an oil admission port, a valve normally closing said port, and a plunger operable to move said piston toward said valved passage to eject oil through the passage.

13. A lubricator including a can body and a spout, said spout having a cylindrical portion therein, a. valved passage at the end of the cylindrical. portion nearer the discharge end of the spout, a piston movable in said cylindrical portion, said piston having an oil admission port, a valve normally closing saidport, a plunger operable to move said piston toward said valved passage to eject oil through the passage, 2; weak spring for returning the piston to normal position, and a strong springfor returning the plunger to normal position, the strong spring being efiective to return the lunger to normal position ahead of said piston therebyopening the piston port to oil admission.-

14. A lubricator including a can bodyand a spout, said spout having a cylindrical portion, a valved passage at the end of the cylindrical portion nearer the discharge end of the spout, a piston movable in said cylindrical portion, said piston having an oil admission port therein, and a plunger operable the bottom of the can body, said plunger having a valve thereon for normally closing the piston port, said plunger being operable to close said port and move said piston towards said valved through said passage.

movable in in said cylindrical said plunger having of said passage, said piston-having an oil admission port therein, a plunger extending through the bottom of the can body and operable exteriorly thereof, said plunger having 5 a valve thereon for engaging the piston port,

said plunger being operable when moved in discharge direction to close said port and move said'piston towards said valved passage to eject oil throu h saidpassage.

m In testimony w ereof I have hereunto subscribed my name at Chicago, Cook-County,

Illinois.

. EMMET H. MORROW. 

